Locomotive-boiler



(No Model.)

AW. BQ WARREN.- Logo-Mo UNITED STATES PATENT rules.

WILLIAM li. Xl/IARREN, OF PEORIA, ILLINOIS.

LOGOMCTiVE-BOILER.

SPECIFICATION forming part of Letters Patent No. 557,459, aat-.ea Marchs1, 189e.

Application filed July 2, 1895. Serial No. 554,726. (No model.) 'i

To tu whom t may concern:

Be it known that I, WILLIAM B. WARREN,A

residing at the city of Peoria, county of Peoria, and State of Illinois,have invented a certain new and useful Improvement in Locomo-Itive-Boilers, of which the following is a full, clear, and exactdescription, reference being had to the accompanying drawings, forming apart of this specification.

The object of my invention is to provide a construction ofexhaust-passages and smokestaeks which Will create a greater and moreequal draft through the ues of the boiler, thereby saving fuel, and alsoproviding a better spark-arrester by more equally distributing the draftacross the smoke-arch.

,Figure I is a vertical section ofthe boiler, cnhaust-pipes, andsmoke-stack through the line I I of Fig. II. Fig. II is a top or planview of a portion of the boiler.

Referring to the drawings, l and 2 are the exhaust-pipes leadi'ug fromthe cylinders. I prefer to have them lcadinto a chamber S, as shown,from which diverge tiyo exhaust-passages land 4, f rming atI their pointof convergence the delector It' These open into the smoke-arch 7, asshown.

5 and f5A are smoke-stacks, so situated as to be immediately above andcoincident or in line with the exhaust-pipes 3 and I, said passage idischarging into stack 5 and said passage I into stack 6.

f) is a perforated screen at the bottoni of the smoke-arch and above thetop line of the boiler-dues. 4 f

lO are nipples secured to the ends ot' the exhaust-pipes and fitting inthe screen for holding the exhaust-passages in position in thescreen.

wedge-shaped part at i the steam is dividedand passes into the passages3 and 4, which are located beneath the smoke-stacks 5 and G and whichdirect the steam through the smokearch into the smoke-stacks. -I thuscreate a draft through both stacks, which are located at' differentpoints on the smokefarch, at each exhaust from the two cylinders, andthis accomplishes the purpose of creating a greater and more equal draftor vacuum through all the dues than can be produced when exhaustingsteam into one smoke-stack, which was the case in the old system,thesingle exhaust tending to produce a draft only through the centerflues and' not through the side and top lues, as is the case in myinvention. Also by reason of thedividing of the steam and providing aplurality of exhaust-passages' therefor the back pressure of steam invthe cylinders is reduced to a minimum.

The screen 0 serves as a spark-arrester, and the two smoke-stacks 5 and6 may be inclosed in an outer covering, if. desired, to give it theappearance of a single stack'.

Having described my invention, I desire to secure by Letters Patent.-

l. Zlhecombination of a plurality of smoke stacks located in a lineacross thev top of the smoke-arch and on different arcs thereof, en

haust-pipes leading freni the steam-cylinders to a point directly underthe smoke-stacks, a chamber with which su'ch exhaust-pipes communicate,and diverging exhaustpasf sages leading from said chamber to thesmokestacks whereby the' exhaust-steam from each pipes leading from 'thecylinders to a chamber and exhaust-passages leading from said chamber tothe smoke-arch and so arranged that each exhaust from the'cylindersWillqpass out into the smoke-arch and through Aboth .smoke-stacks andthereby cause adraft through all the boiler-dues, substantially as andfor the purpose set forth.

3. The combination of a boiler,`tl1e plurality of smoke-stacks locatedin a line across the boiler-top and on different ares thereof, exhaust*il pes leading from the steam-cylinso' cylinder will be directed throughboth of the s' ders io the boiler, :md a Chamber having dandsmoke-stacks, subsmntallyzns shown and vel-glug exlmusl-pnssages loadingtherefrom described;

`comnumicming with the exhaust-pipes, and a \\'Il}l,lA\l l, lYARlllf.

wedge-shaped portion formed at the point of 5 vm'lvm'geuocof theQxlumst-pasSagOs whereby i 'In presence 0f lll@ vxlmust-seam from eachcylinder will lm lV. l.. CEI-:MILLION7 dil-catedtlmmghbnlloftlmcxllmlstqmssagos R. S. (WPUUK. l

